Amphastar Pharmaceuticals, Inc. - Common Stock (NQ:AMPH)
Price and Volume
Detailed Quote| Volume | 106,833 |
| Open | 25.54 |
| Bid (Size) | 25.67 (100) |
| Ask (Size) | 25.74 (200) |
| Prev. Close | 25.37 |
| Today's Range | 25.03 - 25.76 |
| 52wk Range | 16.64 - 29.52 |
| Shares Outstanding | 48,081,433 |
| Dividend Yield | N/A |
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Performance
52-Week Range
12.9% below 52-week high
25.70
16.6452W Low
29.5252W High
1 Week
7.0% below 1-week high
25.061W Low
27.641W High
Amphastar Pharmaceuticals, Inc. - Common Stock (AMPH) traded between $16.64 and $29.52 over the past 52 weeks and last traded at $25.70, 12.9% below its 52-week high. Over the past week it ranged between $25.06 and $27.64.
Past 12 Months
1W
-$0.98
1M
+$2.77
3M
+$6.09
6M
+$5.12
YTD
-$0.76
1Y
-$0.88
AMPH was -3.3% over the past year, +24.9% over six months, -2.9% year to date, -3.7% in the last week.
12 Months vs Market
AMPH
-3.3%
DIA
+10.4%
SPY
+16.3%
QQQ
+25.4%
IWM
+14.7%
Over the past 12 months AMPH returned -3.3% versus DIA (Dow) +10.4%, SPY (S&P 500) +16.3%, QQQ (Nasdaq 100) +25.4% and IWM (Russell 2000) +14.7%.
Volume & Liquidity
0.23× 3-mo avg
Today 106,833
3-mo avg 465.0K
1W
500.2K
1M
541.4K
3M
465.0K
6M
539.7K
YTD
520.8K
1Y
492.2K
AMPH most recently traded 106,833 shares against a 3-month average daily volume of 465.0K.
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August 13, 2026
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Frequently Asked Questions
Is Amphastar Pharmaceuticals, Inc. - Common Stock publicly traded?
Yes, Amphastar Pharmaceuticals, Inc. - Common Stock is publicly traded.
What exchange does Amphastar Pharmaceuticals, Inc. - Common Stock trade on?
Amphastar Pharmaceuticals, Inc. - Common Stock trades on the Nasdaq Stock Market
What is the ticker symbol for Amphastar Pharmaceuticals, Inc. - Common Stock?
The ticker symbol for Amphastar Pharmaceuticals, Inc. - Common Stock is AMPH on the Nasdaq Stock Market
What is the current price of Amphastar Pharmaceuticals, Inc. - Common Stock?
The current price of Amphastar Pharmaceuticals, Inc. - Common Stock is 25.70
When was Amphastar Pharmaceuticals, Inc. - Common Stock last traded?
The last trade of Amphastar Pharmaceuticals, Inc. - Common Stock was at 10/06/26 11:37 AM ET
What is the market capitalization of Amphastar Pharmaceuticals, Inc. - Common Stock?
The market capitalization of Amphastar Pharmaceuticals, Inc. - Common Stock is 1.24B
How many shares of Amphastar Pharmaceuticals, Inc. - Common Stock are outstanding?
Amphastar Pharmaceuticals, Inc. - Common Stock has 1B shares outstanding.
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